问题 填空题

近年我国民营企业有许多在应用节能减排技术支撑产品调整的成功者.以湖北益泰药业有限公司为例,该公司与一批高等院校合作,分步上了6个环保创新项目.其中一项投资近2000万元的硝酸尾气吸收装置,使该公司硝酸尾气回收率提高到90%以上.请问:

(1)硝酸不稳定,在常温下见光或受热很容易分解.生成物有三种:一种是+4价的氮的氧化物,一种是约占空气体积21%的物质,一种是生活中最离不开的液体物质.写出此反应的化学方程式:______.

(2)题目中的“硝酸尾气”,你认为尾气中有哪些气体?______.在化学实验室中我们必须对哪些气体进行尾气吸收处理?______.(请任写出一种)

(4)你家附近地区有化工企业吗?请你为他们提一条要解决的环保问题:______.

答案

(1)+4价的氮的氧化物为二氧化氮、约占空气体积21%的物质为氧气、生活中最离不开的液体物质是水,所以硝酸不稳定,在常温下见光或受热很容易分解反应的化学方程式为4HNO3

 见光或受热 
.
 
2H2O+4NO2↑+O2↑;

(2)硝酸尾气含有氮的氧化物,例如二氧化氮;一氧化碳、二氧化硫有毒,会污染空气,所以在化学实验室中我们这些气体进行尾气吸收处理;

(3)减少含硫煤的燃烧能减少酸雨的形成,工业废水经处理后在排放等.

故答案为:(1)4HNO3

 见光或受热 
.
 
2H2O+4NO2↑+O2↑;(2)二氧化氮;二氧化硫;(3)减少含硫煤的燃烧.

选择题
阅读理解

As the first woman Chancellor( * * ) in German’s history, Angela Merkel topped Forbes magazine’s list of “The World’s 100 Most Powerful Women” in 2006, 2007, 2008, and 2009.She has even been compared to Margaret Thatcher and many people called her  “Iron Lady”.

Merkel was born in Hamburg, West Germany, on July 17, 1954.Six weeks after she was born, her family moved to Templin. As a small child, Merkel quickly learned to speak but took longer to walk. “I was a stupid person when it came to moving?” Merkel said. “A normal person could do something naturally, but I had to think about it in my mind and practice.” As a teenager, she was the top student and graduated from high school with perfect marks. In 1973, Merkel went to the University of Leipzig, where she studied physics. At 32, she got her doctor’s degree in physics.

She stepped_into_politics in 1989.In her first big political job as Minister for the Environment in 1994, her scientific background and strong will proved very useful. In 2005 she became Germany’s Chancellor. She has been reelected to a second term as German Chancellor on September 27, 2009.

Through her political career, Merkel’s persistence (坚持) and patience helped her a lot. “She’s bright and open­minded,” said Hubert Markl. “She is the person who wants to know exactly what is going on, and how never giving up will influence our society and future.”

小题1:As a small child, Merkel was slow in ________.

A.speaking

B.walking

C.learning

D.thinking小题2:The underlined phrase in Paragraph 3 most probably means “________”.

A.fought the government

B.began her scientific career

C.offered political guidance

D.became a government official小题3:We can infer from the passage that Angela Merkel ________.

A.is a powerful woman with a strong will and determination

B.got her doctor’s degree in politics in University of Leipzig

C.has worked as German Chancellor since Sep.27, 2009

D.showed her best talent as Minister for the Environment小题4:In the last paragraph the author mainly wants to express ________.

A.one must be brave in the political career

B.one should be patient when making decisions

C.persistence can help one’s dream come true

D.one can have a strong will when others haven’t小题5:What’s the author’s attitude toward Angela Merkel?

A.Admiring.

B.Thankful.

C.Pitiful .

D.Dull.